Results 221 to 230 of about 210,059 (263)
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The discrete moment problem with fractional moments

Operations Research Letters, 2013
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Anh Ninh, András Prékopa
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Noncommutative moments problem

Functional Analysis and Its Applications, 1987
Let \(U\) be a unitary representation of a real finite-dimensional Lie group \(G\) on a separable complex Hilbert space \(H\) and let \(dU\) be the corresponding representation of the complex enveloping *-algebra \(L\) of \(G\), defined on a domain \(D\subseteq H\).
Daletskiĭ, A. Yu., Samoĭlenko, Yu. S.
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Operator Moment Problems

Mathematische Nachrichten, 1991
In {\S} 2 of this paper, the author fixes the objects of his investigation and states simple results. Further the paper contains a suitable description and properties of sets of solutions as well as relations between different kinds of moment problems.
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The Stieltjes Moment Problem

Canadian Mathematical Bulletin, 1981
We shall apply the spectral theorem for self adjoint operators in Hilbert space to study an operator version of the Stieltjes moment problem [1]. In the course of the work we shall make use of the Friedrichs extension theorem which states that any non-negative symmetric operator in Hilbert space has a non-negative self adjoint extension.
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Moment Problems

1995
In this chapter we present the classical moment problems as they have been mathematically defined. Moment problems are the simplest way to describe inverse problems mathematically. These problems were originally posed with moments being integrals of monomials. Such moment problems are ill-posed, and present considerable computational difficulty. On the
Marek A. Kowalski   +2 more
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The quantum problem of moments II

Reports on Mathematical Physics, 1970
Positive definite functional on the algebra A generated by the position and momentum operators are investigated. The necessary and sufficient condition for the existence of a density matrix representing a given positive definite functional ω is formulated.
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The K-moment problem with densities

Mathematical Programming, 2007
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On a Moment Problem

Mathematics Magazine, 1971
Suppose that a rigid rod of unit mass and unit length is allowed to oscillate in a plane as a pendulum about one end as the point of suspension. If c is a given real number, is it possible to prescribe the mass distribution of the rod (call it f(x)) so that (i) f is a continuous function on [0, 1], (ii) the center of mass is c distant from the point of
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Stieltjes moment problem via fractional moments

Applied Mathematics and Computation, 2005
The authors extend a procedure for the reconstruction of probability density function from the knowledge of its infinite sequence of ordinary moments [cf. the authors, ibid. 144, No. 1, 61--74 (2003; Zbl 1029.44003)] from the case of distributions with finite positive support (Hausdorff case) to the case where the distribution has \([0,\infty ...
Novi Inverardi, Pier Luigi   +3 more
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The Problem of Moments

1943
This book was first published in 1943 and then was reprinted several times with corrections. It presents the development of the classical problem of moments for the first 50 years, after its introduction by Stieltjes in the 1890s. In addition to initial developments by Stieltjes, Markov, and Chebyshev, later contributions by Hamburger, Nevanlinna ...
J. Shohat, J. Tamarkin
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